[RFC PATCH v3 1/2] xfsprogs: add leaf split error tag

[Catherine Hoang <catherine.hoang@oracle.com>]

Add an error tag on xfs_da3_split to test log attribute recovery
and replay.

Signed-off-by: Catherine Hoang <catherine.hoang@oracle.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
---
 io/inject.c           | 1 +
 libxfs/xfs_da_btree.c | 3 +++
 libxfs/xfs_errortag.h | 4 +++-
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/io/inject.c b/io/inject.c
index 43b51db5..a7ad4df4 100644
--- a/io/inject.c
+++ b/io/inject.c
@@ -59,6 +59,7 @@ error_tag(char *name)
 		{ XFS_ERRTAG_BMAP_ALLOC_MINLEN_EXTENT,	"bmap_alloc_minlen_extent" },
 		{ XFS_ERRTAG_AG_RESV_FAIL,		"ag_resv_fail" },
 		{ XFS_ERRTAG_LARP,			"larp" },
+		{ XFS_ERRTAG_DA_LEAF_SPLIT,		"da_leaf_split" },
 		{ XFS_ERRTAG_MAX,			NULL }
 	};
 	int	count;
diff --git a/libxfs/xfs_da_btree.c b/libxfs/xfs_da_btree.c
index f4e1fe80..6474f6cd 100644
--- a/libxfs/xfs_da_btree.c
+++ b/libxfs/xfs_da_btree.c
@@ -479,6 +479,9 @@ xfs_da3_split(
 
 	trace_xfs_da_split(state->args);
 
+	if (XFS_TEST_ERROR(false, state->mp, XFS_ERRTAG_DA_LEAF_SPLIT))
+		return -EIO;
+
 	/*
 	 * Walk back up the tree splitting/inserting/adjusting as necessary.
 	 * If we need to insert and there isn't room, split the node, then
diff --git a/libxfs/xfs_errortag.h b/libxfs/xfs_errortag.h
index c15d2340..6d06a502 100644
--- a/libxfs/xfs_errortag.h
+++ b/libxfs/xfs_errortag.h
@@ -60,7 +60,8 @@
 #define XFS_ERRTAG_BMAP_ALLOC_MINLEN_EXTENT		37
 #define XFS_ERRTAG_AG_RESV_FAIL				38
 #define XFS_ERRTAG_LARP					39
-#define XFS_ERRTAG_MAX					40
+#define XFS_ERRTAG_DA_LEAF_SPLIT			40
+#define XFS_ERRTAG_MAX					41
 
 /*
  * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
@@ -105,5 +106,6 @@
 #define XFS_RANDOM_BMAP_ALLOC_MINLEN_EXTENT		1
 #define XFS_RANDOM_AG_RESV_FAIL				1
 #define XFS_RANDOM_LARP					1
+#define XFS_RANDOM_DA_LEAF_SPLIT			1
 
 #endif /* __XFS_ERRORTAG_H_ */
-- 
2.25.1